Flashing for window and door frames



T. PIERREPONT. FLASHING FOR WINDOW AND DOZJR FRAMES.

APPLICATION FILED APR.5. 1918.

1,330,609. Patented Feb. 10, 1920.

. 1 I I 6 l 8 12 UNITED STATES PATEN FFIGE.

THOMAS PIERREPONT, OF ROCHESTER, NEW YORK.

FLASHING FOR "WINDOW AND DOOR FRAMES.

Specification of Letters Patent.

Patented Feb. 10, 1920.

Application filed April 5, 1918. Serial No. 226,815.

This invention relates to packings applicable around the window or door frames of buildings to make dust, wind and moisture proof the joints between the frames and the building walls and thus exclude dust and dirt and chilling drafts and dampness from the interior of the building.

It is the main object of the invention to provide a simple, inexpensive, efficient and durable packing of this character which will permanently preserve its tight sealing qualities irrespective of shrinking or swelling or warping ofthe window or door frames, or of settling of the building walls at the openings in which the frames are secured.

A further object of the invention is to provide a window or door frame packing which is alike applicable to old buildings and those in course of construction, and when applied preventspremature defacing or soiling of the interior decorations of the building walls by dust and dampness as often happens when the joints of the frames with the walls are not packed so as to be dust and moisture proof.

To these and other ends the invention consists in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the accompanying drawings illustrating a preferred embodiment of the invention, like reference characters indicate similar-parts in the several views.

Figure 1 is a horizontal section through the left hand side of a window frame and the adjacent wall, as viewed from the out side, and having the improved packing applied thereto;

Fig. 2 is a horizontal section illustrating temporary application of a guard to the angular packing strip and the window frame to prevent adhesion of the cement to the frame;

Fig. 8 is a horizontal section illustrating use of a non-adhesive fabric strip with the guard and the packing strip;

Fig. 4; is a horizontal section of the packing shown in Fig. 3, with the finishing staff bead applied to conceal the packing;

Fig. 5 is a perspective view of a portion of the simpler form'of impervious angular packing strip shown in Figs. 1 to 4;

Fig. 6is a perspective view of a modified form of packing strip having at its angle a loop flange confining one edge of a nonadhesive fabric strip;

Fig. 7 is a horizontal section showing application of the packing and fabric strips of Fig. 6 to a Window frame and wall, and

Fig. 8 is a vertical section through the window frame and wall sills to which the improved packing is applied.

The window frame 1 may have any approved construction and may be secured in any way Within an opening of the brick, stone, terra-cotta, concrete or other wall 2 of a building. A portion of the outer upper window sash 3 is shown in Fig. l, and Figs. 2, 3, f and 7 show only outer portions of the window frame including its outside casing 4. To this casing is fixed a staff bead 5, making an outside finish at the corner between the wall and the window frame at both sides and the top of the frame.

The simplest form or arrangement of the invention is detailed in Figs. 1 to 5, and comprises a thin non-corrosive impermeable angular packing strip 6, preferably made of metal, and having a broad plate portion 7 and a narrow flange portion 8. This strip is laid along the top and both sides of the window frame with its plate 7 resting against the frame casing 4 and its flange 8 resting against the edge of the building wall 2. Nails or tacks 9 driven into the wall at the edge of the flange 8 have bent heads 10 over the strip flange 8 and adjacent portions of the face of the wall 2, to securely and permanently fasten the packing strip 6 to the wall only, and not to the frame casing 4:. The

cement 11 has a cross-sectional form allowing the inner corner portion of the staff bead 5 to be cut away so that when fastened to the outside window frame casing a by the nails 19., the staff bead completely covers and conceals the angular packing strip 6 and the strip fastening cement 11. The head 5 also has a shallow rabbet 13 cut to a depth about equaling the thickness of the strip plate 7, and having sufficient breadth to provide a clearance space 1 1 next the edge of the flange, whereby the latter is confined closely by the staffbead to make a practically dust and air tight joint, while leaving the window frame parts, and particularly its outside casing 4, free to contract or expand laterally under changes of temperature or weather without loosening the cement fastening at 11 of the packing strip to the building wall 2.

To provide for application of a proper body of the cement 11 to said strip and to the building wall without laying the adhesive cement upon the window frame casing 4 a suitable guard plate 15 is temporarily held by tacks 16, or otherwise with its preferably sloping inner part at the angle of the packing strip 6, as shown in Figs. 2 and 3. This allows the cement 1-1 to be quickly, easily and accurately applied against the strip flange 8, over the heads 10 of the nails 9, and against the wall 2 and upon the guard 15, and a scraper or shaper may be used to dress down the applied cement to a uniform cross sectional form all along the packing strip. The tacks 16 are now extracted and the guard 15 is slipped out from between the applied cement and the packing strip plate 7, thusleaving a clearance'space17 between this plate and the cement. This space remains after the cement hardens, and allows the thin flexible plate portion 7 tobend more or less at or from the corner or angle of the packing strip as the window frame shrinks or swells or warps, and without cracking or loosening the applied cement or opening the joint of the packing strip at the frame casing 4, or at the staff bead 5'. The packing strip 6 is thus always securely fastened only to the building wall 2 by the cement and will so remain, notwithstanding shrinking or swelling or warping of the window frame in any direction.

A further improvement, shown in Figs. 3, 4t, 6 and 7, consists in placing an oiled or waxed paper or other impervious fabric strip 18 between the freshl'y applied cement 11 and the staff bead 5 to prevent contact of the head with the cement to which no part of the window frame or its staff bead should adhere.- This fabric strip 18 may be conveniently applied by narrowly folding one edge of it over the nose of the guard 15 prior to adjusting the guard tothe' angle of the packing strip 6. as shown in Fig, 3. and

the plastic cement 11 is applied upon the under surface of the folded fabric and upon the packing strip flange 8, the nails 9, and the building wall 2. When the guard 15 is removed from the strip 18, leaving the clearance space 17, the outer portion of this strip is folded over the freshly applied and dressed off cement and preferably beyond it upon the face of the wall 2, as indicated by dotted lines in Fig. 3 and by full lines in Figs. 4 and 7. After the stafl' head 5 is applied and is fastened to the window frame casing 4 by the nails 12', any portion of the fabric 18 then projecting beyond the outer joint of the head with the wall' 2 is cut off by a knife to complete the work which then appears as shown in Figs. 4- and 7 lVhat under certain conditions of use may be considered a further improvement,shown in Figs. 6 and 7, consists in providing or forming upon the angular packing strip 6 a corner flange or rib projecting in the plane of the strip plate 7, and at about right angles to its flange 8. This corner flange or rib 19 may be conveniently produced by folding the metal of the strip over upon itself which also provides for clamping within the fold one edge of the impervious fabric strip 18' under which the guard 15 is temporarily placed prior to applying the cement 11 to the packing stripl flange 8 and the building wall 2. In-applying this modified packing strip 6 its corner flange 19 is entered within, or driven into, the space between the window frame casing 4* and thebuilding' wall 2, as shown in Fig. 7, and after the cement 11 is applied to bind the strip to the wall, the fabric 18 is bent over upon the outer face of the fresh cement and the staff bead 5 is then applied and fastened to the frame casing t by the nails 12, and any projecting fabric 18*, indicated by dotted lines in Fig. 7 is then trimmed off next the bead.

Provision also is made for an air and dust tight sealing of the joint between the wood sill of the window frameand the stone or iron sill usually .set'into the building wall. Fig. 8 sufficiently shows a. preferred development wherein is used a modified" packing strip 6 having a; corner folded flange 20 projecting in the plane of the strip flange 8 and inserted between the window frame sill 21 and" the stone sill 22. Plastic cement 11 is applied upon both the wider strip plate 7 and its narrower flange 8, and also overlies a. sufficiently wide portion of the" stone sill 22 to provide a secure fastening of the angular packing strip to the stone sill alone when the cement later hardens. It is preferred to finish this sill packing by applying over it a rather stiff metal apron 23, which at its inner upper edge has a substantially horizontal flange 24. which tightly fits within a kerf or slot made in the outer edge of the window frame sill 21. Nails 25 may be driven downwardly through the sill 21 and the packing strip flange 24, to more securely fasten the strip to the sill. This apron overhangs the packing strip 6 and its fastening cement 11 and conceals and protects them, and serves practically as a metal stafl bead providing a more pleasing outside finish for the sill joint packing.

A special advantage of this invention is that the improved frame packings may be applied with equal facility to buildings in course of construction or quite new, and to old buildings, and when applied to new or old buildings that are occupied, the entire work may be done from an outside scaffold without discommoding the tenants and without breaking away or defacing the 1nterior plaster walls or the inside architectural trimming or finish of the window or door frame.

I claim as my invention:

1. A packing for window or door frames of buildings, comprising a strip of impervious material, folded longitudinally to provide two flanges angularly disposed with reference to each other, one of said flanges being secured to the wall, and the other resting against the outside casing of the frame,astrip of plastic material applied to the wall and over that portion of the strip secured thereto, a non-adhesive strip overlying the plastic strip, and a staff bead secured to the casing and resting against the wall to conceal said strips.

2. A packing for window or door frames of buildings, comprising a strip of impervious material folded upon itself longitudinally and having one of the folds bent up adjacent the folded edge to provide two flanges arranged at an angle to each other and a folded flange connecting them, said folded flange being inserted between the building wall and the outside casing of the frame, against the latter of which one of said flanges rests, and to the former of which the other flange is secured, a strip of plastic material applied to the wall, and a staff bead secured to the casing and resting against the wall to conceal said strips.

3. The method of applying a packing to the joint between a window or door frame and the wall of the building, which consists in securing one flange of an angular strip of impervious material to the wall with the other flange resting against the outer casing of the frame, temporarily securing a guard to the casing overlying and spaced from the strip thereon and inclined inwardly to engage the strip secured to the wall along a line adjacent the angle of the strip, applying a strip of plastic material to the wall and the flange secured thereto, the inner edge of said plastic strip being formed by contact with said guard.

THOMAS PIERREPONT. 

